48results about How to "Improve rollover resistance" patented technology

The invention discloses an intelligent anti-rollover control system for an oil tank truck and a use method. The intelligent anti-rollover control system comprises a truck frame, a tank body, multi-dimensional pneumatic pressing plate adjusting devices, a combined pressing plate, annular gravity center adjusting devices, six-dimensional posture adjusting bionic wheel legs, a central control unit, a tank body gravity center controller and tank truck sensors. The use method is mainly characterized as follows: the central processing unit performs coordination control on the tank body gravity center controller and a wheel leg posture adjusting controller; the tank body gravity center controller performs coordination control on a pressing plate adjusting controller, a pressing plate controller and an annular gravity center adjusting controller; the wheel leg posture adjusting controller performs six-dimensional posture adjusting on the six-dimensional posture adjusting bionic wheel legs. The intelligent anti-rollover control system can realize real-time online monitoring and control of the gravity center of a chassis of the oil tank truck and the gravity center of the tank body of the oil tank truck, prevent rollover when the oil tank truck is disturbed by the bad road surface and the outside in a high-speed running state and remarkably improve the running stability, safety and the anti-rollover capacity of the oil tank truck.

The invention relates to a mining dump truck which is mainly suitable for large surface mining transportation. A running gear of the mining dump truck comprises a truck frame and a plurality of hydraulic suspensions; every two hydraulic suspensions form a shaft line; the running gear at least comprises two shaft lines; the truck frame is an intermediate box beam structure; wing beams are extendedfrom the two sides of the intermediate box beam; each hydraulic suspension comprises a rotary bearing, a rotary frame, a swinging arm, a suspension cylinder, an oscillating shaft and wheels; wherein the upper end of the rotary frame is arranged on the lower plane of each wing beam of the truck frame by the rotary bearing; the upper end of the rotary frame is movably connected with the swinging arm by pins; one end of the suspension cylinder is hinged at the lower part of the rotary frame; the other end of the suspension cylinder is hinged at the middle part of the swinging arm; the front end of the swinging arm is a cylindrical pin shaft; the oscillating shaft is sleeved on the cylindrical pin at the front end of the swinging arm; and the wheels are arranged at the two ends of the oscillating shaft. According to the mining dump truck, the safety of the mining dump truck is improved, the minimal turning radius of a vehicle is also reduced at the same time, the throughput capacity, the maneuverability and the off-road performance of the mining truck are improved, and the cost of use and maintenance is reduced.

The invention relates a vehicle suspension which comprises an oil cylinder, energy accumulators and damping adjustment units, wherein a rodless cavity of the oil cylinder and a rod cavity of the oil cylinder are respectively connected with one energy accumulator; one damping adjustment unit is arranged between the rodless cavity of the oil cylinder and the corresponding energy accumulator, and the other one damping adjustment unit is arranged between the rod cavity of the oil cylinder and the corresponding energy accumulator. The vehicle suspension has the beneficial effects that the two energy accumulator and corresponding valve banks are arranged, so that rigid and continuous adjustment is realized, the side-tipping resistance and side-turnover resistance of a vehicle are improved, and the comfort, safety and control stability of the vehicle are greatly improved; the capacity of a general gas chamber of the energy accumulator communicated with the rodless cavity of the oil cylinder is increased, so that the rigidity of the suspension is reduced, the suspension is relatively soft, and the vehicle is relatively stable and comfortable in running.

A crawler-type travelling chassis comprises a travelling crane frame (1), crawler assemblies (2), support leg components (4) and support leg swing cylinders (5), wherein the crawler assemblies (2) are parallelly arranged on two sides of the travelling crane frame (1), the support leg components (4) are combined with the crawler assemblies (2), and the support leg swing cylinders (5) are used for driving the support leg components (4) to swing around a hinged shaft. The crawler-type travelling chassis is characterized in that a guide beam (6) is symmetrically arranged on the travelling crane frame (1) and comprises two beams (61 and 62), the two beams are mutually nested together and horizontally extend towards the left side and the right side, the crawler assemblies (2) parallelly arranged on the two sides of the travelling crane frame (1) are respectively combined with two ends of the guide beam (6) horizontally extending towards the left side and the right side by respectively matching a shaft and a hole, chassis telescopic cylinders (3) are arranged among the travelling crane frame (1) and the crawler assemblies (2) and used for driving the crawler assemblies to longitudinally displace and move along the guide beam, and the support leg components (4) are bilaterally symmetrically arranged on the outer side surfaces of the crawler assemblies (2).

The invention discloses a mountain orchard conveying machine and a self-balancing object carrying table thereof. The mountain orchard conveying machine comprises a travelling chassis and the object carrying table, wherein the object carrying table is the self-balancing object carrying table and is installed on the travelling chassis of the mountain orchard conveying machine. The object carrying table comprises a supporting base, an object carrying table body, a balance electric cylinder and an object carrying table control system, wherein the supporting base is arranged the travelling chassis,the object carrying table body is arranged on the supporting base, the two ends of the balance electric cylinder are correspondingly connected with the object carrying table body and the supporting base through an object carrying table universal joint and a supporting base universal joint, the object carrying table universal joint and the supporting base universal joint provide a flexible swinging joint for the balance electric cylinder so as to ensure that mechanism intervention does not occur when the balance electric cylinder stretches and retracts, and the object carrying table control system is arranged on the mountain orchard conveying machine and is correspondingly connected with the object carrying table body and the balance electric cylinder so as to monitor the posture of the object carrying table body in real time and realize leveling control on the object carrying table body by adjusting the extending length of the balance electric cylinder. According to the mountain orchard conveying machine and the self-balancing object carrying table thereof, the anti-rollover performance and the safety coefficient during transportation are improved, and the working efficiency is improved.

The invention provides an auxiliary supporting device of a crane. The auxiliary supporting device of the crane comprises a support frame, an axle bracket, a support cylinder arranged between the support frame and the axle bracket, a roller and an axle for supporting the roller, wherein the support frame is provided with a fixing device capable of installing the auxiliary supporting device of the crane on the crane, one end of the support cylinder is connected with the support frame, the other end of the support cylinder is connected with the axle bracket, and the axle bracket can move relative to the support frame through the support cylinder and is connected with the support frame in a mode that the axle bracket does not rotate relative to the support frame; the axle is arranged on the axle bracket; and the roller is rotationally arranged on the axle. The invention also provides the crane with the auxiliary supporting device. By adopting the auxiliary supporting device of the crane, the stabilizing plane of the crane can be enlarged, and the tipping resistance of the crane can be improved, so that the safety is ensured when the crane works, particularly when the heavy crane runs at a rotary station.

The invention provides a multi-airplane-type airplane weight gravity center automatic measuring device which comprises a front servo lifting leveling device, an inclination angle sensor, a tool car and a rear servo lifting leveling device, wherein the inclination angle sensor is installed on an airplane body pitching reference plane, an electric control cabinet is arranged in the tool car, measurement management software is installed in a computer, the computer is electrically connected with the electric control cabinet, and the front servo lifting leveling device and the rear servo lifting leveling device are each provided with a signal converter and a lateral force resisting mechanism; the inclination angle sensor, the signal converters and the electric control cabinet are electrically connected in sequence. According to the multi-airplane-type airplane weight gravity center automatic measuring device, by arranging the inclination angle sensor, the attitude state of the airplane canbe directly obtained, response is faster, and the safety of the airplane during measurement is improved; the lateral force resisting mechanism is arranged; when the aircraft is lifted, the automatic adjustment function of the horizontal position is realized, the operation is easier and safer, and the test precision and efficiency are improved.

The invention provides a transport tanker with a balancing system. The transport tanker comprises a frame, an axle mounted below the frame and the balancing system. The balancing system comprises elastic assemblies symmetrically arranged on the two sides of the frame, an air cylinder, a vehicle speed detector, a roll angle detector and a controller. Each elastic assembly comprises a plurality of air bags arranged in the length direction of the frame at intervals, and each air bag is installed at the bottom of the frame. The plurality of air bags of each elastic assembly are communicated with one another; the air cylinder is connected with the two elastic assemblies so as to supply air to the two elastic assemblies. The vehicle speed detector is installed at the top of a tank body of the transport tanker and used for detecting the speed and acceleration of the transport tanker. The roll angle detector is arranged in the frame and is used for detecting the roll angle of the transport tanker; and the controller receives the speed, the acceleration and the roll angle of the transport tanker, outputs control information, and controls the air cylinder to inflate the elastic assembly on one side of the frame according to the control information so as to adjust the roll angle of the transport tanker.

The invention discloses a novel harvester chassis structure with leveling function, belongs to the technical field of machine manufacturing, and is intended to solve the problem when operating in mountain and hilly areas, an existing harvester lacking a rollover preventer easily rolls over due to complex terrain. The novel harvester chassis structure comprises a frame, a front axle and a rear axle and is characterized in that two spherical joints are connected to the bottom of the frame, the spherical joint at the front of the frame is connected with a front axle supporting hydraulic cylinder, and the spherical joint at the rear of the frame is connected with a rear axle supporting hydraulic cylinder. The novel harvester chassis structure is simple in structure, ingenious in design and low in cost, can effectively adapts to work environments in complex terrain areas and has improved rollover preventing performance.

The invention relates to the technical field of passenger car safety protection, in particular to a high-efficiency rollover preventing system for a passenger car. According to the high-efficiency rollover preventing system disclosed by the invention, the inclination angle of a car body is sensed by an inclination angle sensor arranged in the gravity position of the car body; in the travelling process of the passenger car, when the inclination angle of the car body exceeds a set critical angle, a command of opening baggage cabin doors is transmitted to a cabin door ejecting mechanism arranged between each baggage cabin door and the car body through a controller; and each baggage cabin door which touches the ground before the car body absorbs a part of impact energy in advance through a triangular structure consisting of a car body breast beam lower stand column, a cabin door stand column hinged to the car body breast beam lower stand column, and a folding pull rod of which the two ends are respectively hinged to the car body breast beam lower stand column and the cabin door stand column, so that the touchdown deformation of a car body structure is buffered and reduced, and the effect of protecting the living space of occupants is achieved. According to the high-efficiency rollover preventing system disclosed by the invention, a conventional car body structure can be better utilized, and the rollover preventing property of the passenger car is improved through an active manner.

The present invention relates to shock reducer, and is especially a kind of automatic height balancing shock reducer. The shock reducer includes a cylinder, a cylinder cavity and pistons, and features that inside the cylinder, there are two pistons with top ends separately on the pressing board and the pushing board and one balance sprig set between the pressing board and the pushing board. By means of these two pistons moving oppositely during vibration and the balance sprig, the vertical displacement produced during vibration is counteracted to maintain balance, and this makes it possible to lower the road clearance and gravitational center of motored transportation vehicle.

The invention relates to an ultra-large type crawler crane wheel set type bearing trolley device which is suitable for slewing bearing of an ultra-large type crawler crane. The device is assembled between a base and a platform. The trolley device mainly comprises a combination trolley mechanism, a driving mechanism and a hook roller mechanism. The combination trolley mechanism is composed of multiple stages of beam frames which are hinged step-by-step and wheel sets at the bottom of the mechanism, and the driving mechanism and the hook roller mechanism are respectively connected to the combination trolley mechanism. The wheel sets on the lower portion of the trolley device are matched with an annular track on a lower trolley base, the upper portion of the trolley device is fixedly connected with an upper trolley platform, and bearing is formed. The ultra-large type crawler crane wheel set type bearing trolley device integrates driving, rotating and bearing, limitation of bearing radius factors in the crane design is avoided, the anti-tipping-over capability is improved, due to the upper trolley and lower trolley bearing mode of the trolley device, larger loads can be borne, and the working condition of large load moment and the large working radius is facilitated.

The invention discloses a side-turning safety protection device of a passenger car with a cabin door and an airbag. The side-turning safety protection device is composed of cabin door popup mechanisms (3) which are arranged on luggage cabin doors at the bottom parts of the two sides of the passenger car and are capable of enabling the cabin doors to open rapidly, a contact switch arranged at the place where a parking brake is located, and a dip angle sensor (1) and a controller (2) both of which are arranged at the position where the center of gravity of the car body is located, wherein the side-turning safety protection device further comprises safe airbag components (7) which are arranged at the inner sides of the passenger car luggage doors (6) at two sides; the cabin door popup mechanism (3) and the safe airbag component (7) are respectively connected with a signal output port of the controller (2); the dip angle sensor (1) and the contact switch at the place where the parking brake is located are respectively connected with a signal input port of the controller (2). The invention provides an improved side-turning safety protection device of the passenger car on the basis of the conventional passenger car structure to dedicate to the improvement of the side-turning safety of the passenger car and realization of light-weight design of the car body by adopting the upper-lifting type movable cabin doors and the safe airbag components on the basis of unchanging the original car body structure.

The invention provides an anti-rollover transport tanker. The anti-rollover transport tanker comprises a frame, an axle mounted below the frame, and a hydraulic interconnection suspension for connecting the frame with the axle, wherein the hydraulic interconnection suspension comprises two suspension mechanisms and a connecting mechanism, the two suspension mechanisms are arranged on two sides ofthe frame respectively, each suspension mechanism comprises at least one damping valve block and at least two hydraulic shock absorbers, the hydraulic shock absorbers of the suspension mechanisms enable oil cavities of the hydraulic shock absorbers of the suspension mechanisms to be communicated with each other through at least one damping valve block, and enable pressure cavities of the hydraulicshock absorbers of the suspension mechanisms to be communicated with each other, a top end of each hydraulic damper is connected with the frame, a bottom end is connected with an axle, the connectingmechanism comprises a plurality of connecting pipes which are arranged in parallel, each connecting pipe is connected between the damping valve blocks corresponding to the two suspension mechanisms,so hydraulic oil in the oil cavities of the hydraulic shock absorbers between the two suspension mechanisms is communicated, and pressure in the pressure cavities of the hydraulic shock absorbers between the two suspension mechanisms is communicated.

The invention relates to a vehicle suspension and a vehicle. The suspension comprises an oil cylinder, a power unit and at least three accumulators, wherein a rod chamber of the oil cylinder is communicated with the first accumulator and the power unit respectively, and a rodless chamber of the oil cylinder is communicated with the second accumulator and the power unit respectively. The vehicle comprises the suspension which is arranged at the bottom of a vehicle body. The suspension and the vehicle have the beneficial effects that real-time and step adjustment of rigidity is achieved and the side-tipping and rollover resistance of the vehicle is improved, thus greatly improving the comfort, safety and handling stability of the vehicle; and the volume of the total air chamber of the accumulator connected with the rodless chamber of the oil cylinder is increased, thus reducing the rigidity of the suspension, so that the suspension is more flexible and then the vehicle runs more stably and comfortably.

The invention relates to a supporting leg mechanism of a pump truck. An automotive chassis of the pump truck is provided with a base assembly and an auxiliary frame. The supporting leg mechanism comprises front supporting legs on the base assembly and rear supporting legs on the auxiliary frame. The front supporting legs include two upper supporting legs and two lower supporting legs, the base assembly is provided with an upper layer of X-type guide rail and a lower layer of X-type guide rail, and the two upper supporting legs and the two lower supporting legs are installed on the upper layer of X-type guide rail and the lower layer of X-type guide rail respectively. The four front supporting legs are arranged in an upper layer and a lower layer respectively and distributed in a dual-X shape, the front supporting legs stretch and retract in the fixed rails, the bearing range of the supporting legs is widened, the two rear supporting legs are fixed to the auxiliary frame, and supporting positions are kept unchanged. The supporting leg structure can better adapt to pump truck work site requirements, the pump truck can be better arranged in a narrow work site, the weight of the rear portion of the pump truck can be better borne, so the pump truck is more stable and safer during work, and the anti-rollover capacity of the pump truck is greatly improved.

The invention discloses a novel wing opening type self-dumping semitrailer and a self-dumping method thereof, belongs to the technical field of semitrailers, solves the technical problems of safe operation, high efficiency and environmental protection of the self-dumping semitrailer in an operation site, and according to the technical scheme, the self-dumping semitrailer comprises a frame, a carriage body, a self-dumping mechanism, a side door locking mechanism and a lifting hydraulic system; the carriage body is welded to the frame; the self-dumping mechanism is arranged in the carriage body and hinged to the carriage body, one end of the lifting hydraulic system is hinged to the frame, the other end of the lifting hydraulic system is hinged to the self-dumping mechanism, and the lifting hydraulic system drives the side door of the carriage body to turn over towards the outer side of the carriage body through the self-dumping mechanism; the side door locking mechanism is arranged on the carriage body, and the side door locking mechanism and the lifting hydraulic system synchronously control opening or closing of the side door. The semitrailer can adapt to complex operation sites, goods are unloaded when the carriage body is in a horizontal state, the anti-rollover capacity of the semitrailer is improved, operation is convenient, wheels are not buried by the goods, and the unloading efficiency is high.

The invention relates to the technical field of battery electric vehicle safety protection, in particular to a battery electric vehicle efficient side turnover preventing system. A tilt angle sensor arranged in the gravity center position of a vehicle body is used for sensing the tilt angle of the vehicle body, in the traveling process of a battery electric vehicle, when the tilt angle of the vehicle body exceeds a preset critical angle, a controller sends a command to a compartment door catapulting mechanism arranged between a luggage compartment door and the vehicle body to open the luggagecompartment door, the luggage compartment door touching the ground before the vehicle body absorbs a part of impact energy in advance through a triangular structure composed of a vehicle body waist rail lower upright, a compartment door upright hinged to the vehicle body waist rail lower upright and a foldable pull rod with the two ends hinged to the vehicle body waist rail lower upright and the compartment door upright, the ground touching deformation of a vehicle body structure is buffered and reduced, and a passenger living space is protected. The existing structure of the vehicle body canbe better used, and the side turnover resisting performance of the battery electric vehicle is improved in an active mode.

The invention discloses a travelable supporting leg device of an all-terrain crane and belongs to the technical field of all-terrain cranes. The travelable supporting leg device is characterized in that the lower end of a supporting leg of the all-terrain crane in the prior art is provided with a travelable supporting wheel device which has the following structure: the upper end of a supporting leg plate base is made into a concave spherical surface, a semisphere arranged at the lower end of the supporting leg is arranged in the concave spherical surface to realize sliding fit, and the upper part of the supporting leg plate base is fixedly connected through a close cover by using a bolt; and the bottom of the supporting leg plate base is connected with a disk-shaped connecting plate through a bolt, the lower part of the connecting plate is connected with a bearing block of a travelling wheel through a pivoting support, and the travelling wheel is arranged in the bearing block through a bearing. In an oil cylinder hydraulic system with a vertical supporting leg, a rod chamber oil circuit of a hydraulic oil cylinder is connected in series with a two-position two-way electromagnetic directional valve and also connected with a top petrol tank; and a rodless chamber oil circuit of the hydraulic oil cylinder is connected in series with a two-position two-way electromagnetic directional valve and also connected with an energy accumulator. The device can adapt to the lifting travelling operation and static lifting operation and used for improving the performance of the lifting travelling operation of the crane.

The invention relates to a flood drainage car which comprises a car chassis. A base structure is mounted on the car chassis, an extensile arm frame mechanism and a drainage system are mounted on the base structure, the arm frame mechanism comprises a plurality of foldable arm frames and a water suction pump mounted on the arm frames, one end of the water suction pump is connected with a water suction pipeline, the other end of the water suction pump is connected with the drainage system through a drainage pipe, the water suction pipeline is mounted on the arm frames, and a port of the water suction pipeline is formed in the tail end of the extended arm frame mechanism. According to the flood drainage car, the arm frames can remotely extend to a waterlogging area, and drainage efficiency ishigh.

The invention discloses a supporting leg assembly and mechanical equipment. The supporting leg assembly comprises a first supporting leg, a rotating arm and a second supporting leg. The first supporting leg comprises a first fixing leg and a first telescopic leg telescopically arranged on the first fixing leg; the rotating arm is rotatably arranged on the first fixing leg; and the second supporting leg comprises a second fixing leg and a second telescopic leg telescopically arranged on the second fixing leg, the second leg is fixed to the rotating arm, and the second supporting leg can rotatearound the first supporting leg through the rotating arm. According to the technical scheme, the second supporting leg can rotate all-directionally by 360 degrees, and the anti-tipping capacity, the working stability and the adaptability of special working conditions during working of the equipment are greatly improved.

The invention discloses a binding trolley for concrete steel bars and a binding construction method thereof, and belongs to the technical field of design and manufacturing of auxiliary technologydevices for building construction devices. According to the binding trolley for the concrete steel bars and the binding construction method thereof,steel bar binding operability is high, and construction operation is convenient. The binding trolley comprises a trolley frame, a steel bar binding platform, and a mounting driving system, and the steel bar binding platform is movably supported on the trolley frame through the mounting driving system;the method comprises the steps that a concrete beam steel bar binding trolley of a suitable length is assembledon a formwork support frame system of a construction site according to the length of a concrete beam, a hoisting machine is debugged after the binding trolley is in place, and hydraulic pressure support legs are arranged between the formwork support frame system and the binding trolley, beam steel bar frameworks are bonded to load-bearing steel bars,the hoisting machine is operated to place the hoistedsteel bar frameworks on abeam soffit formwork, after the steel bar frameworksare in place, the hydraulic pressure support legs are retracted, and several processes are removed from the trolley in sections.

The invention relates to a connector for connecting a cross beam and an upright post. The connector has a transverse 'you'-shaped (Chinese character) structure, the protruding end of the front part of the connector extends out of the cross beam, the rear part of the connector has a frame-type closed cavity structure, and bolts holes are formed in the inside corners close to the front part of the connector. Compared with the prior art, the connector has the advantages that: a free installation sequence is realized through the closed cavity structure; two pin holes are shifted forwards, so that the side turning resistance of vertical anti-shearing design is obviously enhanced; the connector is easy to construct and convenient to operate; and because bolts are provided with springs, loosening is prevented, the connector is easy to disassemble and assemble, and an effective system can be formed by combination.

The invention relates to the technical field of engineering mechanical equipment, in particular to a crane. The crane provided by the invention comprises a chassis, a rotary table, a main arm, a mast, a luffing mechanism, a main counterweight mechanism and an additional counterweight mechanism. Wherein one end of the mast is pivotally connected with the rotary table, one end of the luffing mechanism is connected with the other end of the mast, the other end of the luffing mechanism is connected with the other end of the main arm, the length of the luffing mechanism is adjustable, the main counterweight mechanism is arranged at the other end of the rotary table, and the additional counterweight mechanism is arranged at the other end of the mast. According to the crane provided by the invention, due to the design of the additional counterweight mechanism, the anti-tipping capability can be greatly improved. In addition, the additional counterweight mechanism is connected with the mast, so that the gravity of the additional counterweight mechanism can be transmitted to the rotary table through the mast, the stress state of the rotary table slewing bearing can be effectively improved, and the length and hoisting performance of the boom under the standard working condition are improved.

The invention relates to an intelligent agricultural machine with obstacle crossing capability. The intelligent agricultural machine comprises a frame provided with a front traveling wheel and a rear traveling wheel, the front traveling wheel is connected with the frame through a damping mechanism, the damping mechanism comprises a pneumatic rod and a connecting rod which are arranged up and down, one end of the connecting rod is hinged with the frame, and a hinge shaft is fixed at the other end of the connecting rod; the hinge shaft is rotatably matched with a hinge hole in the front walking wheel, a large gear is fixed to the hinge shaft, a small gear in meshed transmission with the large gear is rotatably assembled on the front walking wheel, a connecting rod is fixed to a gear shaft of the small gear, and a laser displacement sensor used for irradiating laser forwards is arranged at the lower end of the connecting rod; and the laser displacement sensor is provided with a measuring position and a retracting position higher than the measuring position in the process of swinging along with the connecting rod, and when the laser displacement sensor is located at the measuring position, the height of the laser displacement sensor is consistent with the bottommost height of the front walking wheel. The invention provides the intelligent agricultural machine with the obstacle crossing capability, and the intelligent agricultural machine can cross ridges and can prevent the ridges from being damaged.

The invention discloses a vertical silo for dry storage of spent fuel in a nuclear power plant, which includes a silo, a top cover and a bottom plate, wherein the silo includes an inner silo and an outer silo, and the space between the inner silo and the outer silo is It has a first annular chamber, and when the spent fuel storage tank is stored in the silo, there is a second annular chamber between the inner silo and the spent fuel storage tank, and there is also a second annular chamber between the bottom of the inner silo and the bottom plate, which is connected with the first annular chamber and the spent fuel storage tank. The air flow channel of the air inlet connected to the second ring cavity; the upper area of ​​the silo is provided with an air inlet connected to the first ring cavity, the air inlet is provided with an air inlet protective cover, and the upper part of the top cover is provided with an air outlet. An air outlet protective cover is provided, the bottom of the silo is fixedly connected with the bottom plate, and the top cover is fixed on the upper part of the silo. Compared with the prior art, the vertical silo for dry storage of nuclear power plant spent fuel of the present invention can prevent the clogging of the ventilation opening, has high natural ventilation flow rate, good radiation shielding effect and safe overall structure.

The invention discloses a scooter, and belongs to the technical field of scooters. According to the scooter, the problem that driving of an existing scooter is unsafe is solved. The scooter comprises a front frame and a rear frame, a driving wheel is arranged on the rear frame, two driven wheels are arranged on the two sides of the front frame, the front frame is hinged to the rear frame, and hub shafts are arranged between the driven shafts and the front frame. A first push-pull rod is arranged on the rear frame, and the two ends of the first push-pull shaft are connected with the two hub shafts through rocker arm connecting rod mechanisms respectively. When the first push-pull rod swings along with the rear frame in the direction close to one hub shaft together, the rocker arm connecting rod mechanism close to the hub shaft drives the hub shaft to swing upwards, and the other rocker arm connecting rod mechanism drives the other hub shaft to swing downwards. According to the scooter, due to the fact that the first push-pull rod, the hub shafts and the rocker arm connecting rod mechanisms are arranged, the gravity components of a person and the scooter offset centrifugal force generated by the person and the scooter in the turning process of the scooter, the rollover resisting capacity of the scooter in the turning process is enhanced, and the driving stability and safety of the scooter are improved.

The present invention relates to shock reducer, and is especially a kind of automatic height balancing shock reducer. The shock reducer includes a cylinder, a cylinder cavity and pistons, and features that inside the cylinder, there are two pistons with top ends separately on the pressing board and the pushing board and one balance sprig set between the pressing board and the pushing board. By means of these two pistons moving oppositely during vibration and the balance sprig, the vertical displacement produced during vibration is counteracted to maintain balance, and this makes it possible to lower the road clearance and gravitational center of motored transportation vehicle.

The invention discloses a coercing stirring pump truck. The coercing stirring pump truck comprises a truck chassis, a pump truck supporting leg mechanism, an arm frame distribution mechanism, a base body structural piece, an auxiliary truck frame, a double-horizontal-shaft coercing stirring machine, a pumping mechanism, a first connecting shaft, a transfer case, a hydraulic oil pump and a second connecting shaft, the auxiliary truck frame is fixedly mounted on the truck chassis, and a horizontal track is horizontally arranged on the auxiliary truck frame. The base body structural piece is connected and fixed to the side, close to the top of a truck head, of the auxiliary truck frame, the base body structural piece and the horizontal track are arranged by 90 degrees, and the arm frame distribution mechanism is fixedly mounted at the top of the base body structural piece. The arm frame distribution mechanism is provided with a plurality of foldable arm frames, and every two adjacent foldable arm frames are flexibly operated through an arm frame structural piece. Integration of the three functions of stirring, pumping and distribution is achieved, the coercing stirring pump truck canbe better arranged in a narrow construction site, the weight on the rear portion of the pump truck can be well borne, and thus the pump truck is more stable and safer in work.

The invention relates to a vehicle suspension and a vehicle. The suspension comprises an oil cylinder, a power unit and at least three accumulators, wherein a rod chamber of the oil cylinder is communicated with the first accumulator and the power unit respectively, and a rodless chamber of the oil cylinder is communicated with the second accumulator and the power unit respectively. The vehicle comprises the suspension which is arranged at the bottom of a vehicle body. The suspension and the vehicle have the beneficial effects that real-time and step adjustment of rigidity is achieved and the side-tipping and rollover resistance of the vehicle is improved, thus greatly improving the comfort, safety and handling stability of the vehicle; and the volume of the total air chamber of the accumulator connected with the rodless chamber of the oil cylinder is increased, thus reducing the rigidity of the suspension, so that the suspension is more flexible and then the vehicle runs more stably and comfortably.